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This invention relates to batteries with aluminium anodes and to methods of operating such batteries at very high voltage. Aluminium batteries with alkaline electrolytes have greatly superior performance to those with neutral chloride electrolytes. In simple alkaline electrolytes, pure aluminium cannot be used as the anode, because it polarizes under load. It is accepted as necessary to use alloys of aluminium for the anode in such batteries. There is a considerable body of patent and other literature showing the use of Al alloys with activating elements such as Ga, In, Sn, and Tl.
In batteries of this kind, the aluminium sheet manufacturers can exist in various states, two of which we have called super-active and hyper-active. To the best of our knowledge, the hyper-active state, on which this invention is based, is entirely new.
The super-active state may be described as the natural condition in which aluminium anode alloys discharge in alkaline and neutral electrolytes. Anodes in this state are more electrochemically active than pure aluminium would be under the same reaction conditions. This is because the alloying additions break down the naturally occurring protective film by localized action (pitting). It can be observed that the surface of the anode becomes pitted, on a scale of a few tens of microns, with globules or agglomerations of activator metals at the bottoms of the pits. When in the super-active state, an aluminium alloy anode typically has an open circuit potential of around -1.7 V to -1.85 V (vs Hg/HgO in 25° C. 4M NaOH). Color coated aluminum coil is a material with excellent acid-resistance and alkali-resistance. The coating layer is even with bright color to last for a very long time. It is a green decoration material with the characters of environment protection, flame-resistance, and groovy colors. In nowadays, the color coated aluminum coil has become the popular material for top grade decoration. With our advance professional aluminum coated technique, we can custom various aluminum coils ,like coated aluminum coil , Color coated aluminum coil , embossed aluminum sheet with the color and size which you demands.  
Information of the product:
1) Process: pre-treatment, continuous painting and baking for times .
2) Material: high quality material, aluminum sheets from South West Aluminum Industry Company
in China, pre-treatment material from Henkel & Chemtell from Germany, more than 70% of
PVDF coating from PPG Corp., the USA and polyester from Sweden Becker Industrial Coating
Co., Ltd.
3) Our products can keep excellent quality and stability.
4) The color coated aluminum coils are used for curtain walls, ceilings, roofs andwalls.
5) Thickness: 0.026 - 1.5mm; width: 35 - 1,590mm The hyper-active state was initially observed as a transient one at the start of anode dissolution, and a precursor to the super-active state. Anodes in the hyperactive state typically exhibit open circuit potentials of -1.95 V to -2.15 V (vs Hg/HgO in 4M NaOH at 25° C.). Hence the measured open circuit potential can be used to determine in which state the anode is operating.
If you're tired of painting the window frames year after year and replacing rotted sills, then you need to consider metal flashing for the window trim. You can do the entire job in a jiffy if you have a bender, aluminium coil stock, a straight edge and a good cutting knife. When you bend metal flashing for window trim, the most important part of the procedure is the correct measurements.
Mark the width measurements on the back of the aluminum stock that you cut to length. Mark the measurements on both the top and bottom of the aluminum stock. Use these marks when you bend the metal flashing. Score the flashing to size and break it off.
Loosen the metal by releasing the top arm and pull it to the second mark on the aluminum coil. Proceed the same way as you did for the first bend. This is a time saver when you bend metal flashing for windows. The alternative is to remove the entire piece and turn it around.
Remove the aluminum manufacturer from the bender. Fit the metal to the frame and tack down if it fits properly. source:bloggumaluminum coil
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